From: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Date: Sat, 7 Jun 2025 09:37:16 +0000 (+0200)
Subject: ARM: dts: stm32: add stm32h747i-disco-u-boot DTS file
X-Git-Tag: v2025.10-rc1~118^2~30^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=366f0bfe4f8be35961469f405929e9bb77bb5599;p=pandora-u-boot.git

ARM: dts: stm32: add stm32h747i-disco-u-boot DTS file

Add stm32h747i-disco-u-boot DTS file with FMC SDRAM node and its
pinmux settings.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
---

diff --git a/arch/arm/dts/stm32h747i-disco-u-boot.dtsi b/arch/arm/dts/stm32h747i-disco-u-boot.dtsi
new file mode 100644
index 00000000000..ff297cc91fa
--- /dev/null
+++ b/arch/arm/dts/stm32h747i-disco-u-boot.dtsi
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2025 Amarula Solutions, Dario Binacchi <dario.binacchi@amarulasolutions.com>
+ */
+
+#include <stm32h7-u-boot.dtsi>
+
+&fmc {
+
+	/*
+	 * Memory configuration from sdram datasheet IS42S32800G-6BLI
+	 * first bank is bank@0
+	 * second bank is bank@1
+	 */
+	bank1: bank@1 {
+		st,sdram-control = /bits/ 8 <NO_COL_9
+					     NO_ROW_12
+					     MWIDTH_32
+					     BANKS_4
+					     CAS_2
+					     SDCLK_3
+					     RD_BURST_EN
+					     RD_PIPE_DL_0>;
+		st,sdram-timing = /bits/ 8 <TMRD_1
+					    TXSR_1
+					    TRAS_1
+					    TRC_6
+					    TRP_2
+					    TWR_1
+					    TRCD_1>;
+		st,sdram-refcount = <1539>;
+	};
+};
+
+&pinctrl {
+	fmc_pins: fmc@0 {
+		pins {
+			pinmux = <STM32_PINMUX('D', 0, AF12)>,
+				 <STM32_PINMUX('D', 1, AF12)>,
+				 <STM32_PINMUX('D', 8, AF12)>,
+				 <STM32_PINMUX('D', 9, AF12)>,
+				 <STM32_PINMUX('D',10, AF12)>,
+				 <STM32_PINMUX('D',14, AF12)>,
+				 <STM32_PINMUX('D',15, AF12)>,
+
+				 <STM32_PINMUX('E', 0, AF12)>,
+				 <STM32_PINMUX('E', 1, AF12)>,
+				 <STM32_PINMUX('E', 7, AF12)>,
+				 <STM32_PINMUX('E', 8, AF12)>,
+				 <STM32_PINMUX('E', 9, AF12)>,
+				 <STM32_PINMUX('E',10, AF12)>,
+				 <STM32_PINMUX('E',11, AF12)>,
+				 <STM32_PINMUX('E',12, AF12)>,
+				 <STM32_PINMUX('E',13, AF12)>,
+				 <STM32_PINMUX('E',14, AF12)>,
+				 <STM32_PINMUX('E',15, AF12)>,
+
+				 <STM32_PINMUX('F', 0, AF12)>,
+				 <STM32_PINMUX('F', 1, AF12)>,
+				 <STM32_PINMUX('F', 2, AF12)>,
+				 <STM32_PINMUX('F', 3, AF12)>,
+				 <STM32_PINMUX('F', 4, AF12)>,
+				 <STM32_PINMUX('F', 5, AF12)>,
+				 <STM32_PINMUX('F',11, AF12)>,
+				 <STM32_PINMUX('F',12, AF12)>,
+				 <STM32_PINMUX('F',13, AF12)>,
+				 <STM32_PINMUX('F',14, AF12)>,
+				 <STM32_PINMUX('F',15, AF12)>,
+
+				 <STM32_PINMUX('G', 0, AF12)>,
+				 <STM32_PINMUX('G', 1, AF12)>,
+				 <STM32_PINMUX('G', 2, AF12)>,
+				 <STM32_PINMUX('G', 4, AF12)>,
+				 <STM32_PINMUX('G', 5, AF12)>,
+				 <STM32_PINMUX('G', 8, AF12)>,
+				 <STM32_PINMUX('G',15, AF12)>,
+
+				 <STM32_PINMUX('H', 5, AF12)>,
+				 <STM32_PINMUX('H', 6, AF12)>,
+				 <STM32_PINMUX('H', 7, AF12)>,
+				 <STM32_PINMUX('H', 8, AF12)>,
+				 <STM32_PINMUX('H', 9, AF12)>,
+				 <STM32_PINMUX('H',10, AF12)>,
+				 <STM32_PINMUX('H',11, AF12)>,
+				 <STM32_PINMUX('H',12, AF12)>,
+				 <STM32_PINMUX('H',13, AF12)>,
+				 <STM32_PINMUX('H',14, AF12)>,
+				 <STM32_PINMUX('H',15, AF12)>,
+
+				 <STM32_PINMUX('I', 0, AF12)>,
+				 <STM32_PINMUX('I', 1, AF12)>,
+				 <STM32_PINMUX('I', 2, AF12)>,
+				 <STM32_PINMUX('I', 3, AF12)>,
+				 <STM32_PINMUX('I', 4, AF12)>,
+				 <STM32_PINMUX('I', 5, AF12)>,
+				 <STM32_PINMUX('I', 6, AF12)>,
+				 <STM32_PINMUX('I', 7, AF12)>,
+				 <STM32_PINMUX('I', 9, AF12)>,
+				 <STM32_PINMUX('I',10, AF12)>;
+
+			slew-rate = <3>;
+		};
+	};
+};